Title:
LOUDSPEAKER BOX
Document Type and Number:
WIPO Patent Application WO/2021/223261
Kind Code:
A1
Abstract:
Provided by the present application is a loudspeaker box, comprising a box body and a sound generating unit. The sound generating unit comprises a housing and an upper voice diaphragm and lower voice diaphragm that are installed on the housing. The upper voice diaphragm, the lower voice diaphragm and the housing enclose to form a first cavity. The housing comprises a main body part fixedly connected to the upper voice diaphragm and the lower voice diaphragm, and a connecting table formed protruding outward from the main body part. The box body comprises a support part that has a second cavity, and a bump. The sound generating unit is fixed to the bump by means of the connecting table. A first leakage passage communicating with the first cavity is provided on the housing, and a second leakage passage communicating with the second cavity is provided on the box body. The first leakage passage communicates with the second leakage passage so as to form a rear cavity leakage passage, and the first cavity communicates with the second cavity by means of the rear cavity leakage passage. The bump, the lower voice diaphragm and an outer wall enclose to form a front cavity, and the bump is penetrated with a notch that communicates the front cavity with the outside. The loudspeaker box of the present application increases the vibration area of the sound generating unit, which is able to offset its own vibrations, thereby improving the sound quality.
Inventors:
YAN XUDONG (CN)
GU XIAOJIANG (CN)
SHAO TAO (CN)
GU XIAOJIANG (CN)
SHAO TAO (CN)
Application Number:
PCT/CN2020/090478
Publication Date:
November 11, 2021
Filing Date:
May 15, 2020
Export Citation:
Assignee:
AAC ACOUSTIC TECH SHENZHEN CO LTD (CN)
AAC TECHNOLOGIES PTE LTD (SG)
AAC TECHNOLOGIES PTE LTD (SG)
International Classes:
H04R9/06
Foreign References:
| CN109040921A | 2018-12-18 | |||
| CN103209377A | 2013-07-17 | |||
| CN108513230A | 2018-09-07 | |||
| CN102333270A | 2012-01-25 | |||
| US20180295449A1 | 2018-10-11 |
Attorney, Agent or Firm:
SHENZHEN CHINA INNOVATION SOUTH INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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